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# Jan19Note - PHYS142 Lecture 6 Gausss Law Chapter 24 All...

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Gauss’s Law • Chapter 24 All sections 24.1 Electric Flux 24.2 Gauss’s Law 24.3 Application of Gauss’s Law to Various Charge Distributions 24.4 Conductors in Electrostatic Equilibrium 3 PHYS142 Lecture 6

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Conductors in electrostatic equilibrium (24.4) • In insulators charges cannot move. • In conductors , charges are free to move. In electrostatic equilibrium , there is no net force acting on a charge. 0 E q F Thus the E-field inside a charged conductor must be zero. 4 Charges in conductors rearrange to achieve electrostatic equilibrium.
A uniform electric field of 1.00 N/C is set up by a uniform distribution of charge in the xy plane. What is the electric field inside a metal ball placed 0.500 m above the xy plane? 1 2 3 4 5 22% 5% 8% 19% 46% 1. 1.00 N/C 2. 21.00 N/C 3. 0 4. 0.250 N/C 5. varies depending on the position inside the ball Question 2

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1. E-field is zero everywhere inside the conductor, whether the conductor is solid or hollow (Example 1). 2. If the conductor is isolated and carries a charge, the charge
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Jan19Note - PHYS142 Lecture 6 Gausss Law Chapter 24 All...

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